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v3.25.3

INVESTMENT ACTIVITY - Company's consolidated balance sheets (Details) $ in Thousands | 21 Months Ended
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Sep. 30, 2025 USD ($) property segment
INVESTMENT ACTIVITY |
Number of joint ventures | segment | 3
Port Chester, NY |
INVESTMENT ACTIVITY |
Number of stores | property | 1
CubeSmart Ownership Interest | 90.00%
Total Construction Costs | $ | $ 18,100
Astoria, NY |
INVESTMENT ACTIVITY |
Number of stores | property | 1
CubeSmart Ownership Interest | 70.00%
Total Construction Costs | $ | $ 45,900
Clark, NJ |
INVESTMENT ACTIVITY |
Number of stores | property | 1
CubeSmart Ownership Interest | 90.00%
Total Construction Costs | $ | $ 15,900
NY and NJ |
INVESTMENT ACTIVITY |
Number of stores | property | 3
Total Construction Costs | $ | $ 79,900

X
- Definition The number of self-storage facilities with construction completed and opened for operation during the period. + References No definition available. + Details
Name: | cube_NumberOfFacilitiesConstructionCompletedAndOpenedForOperation
Namespace Prefix: | cube_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of joint ventures involved in completion of construction and opened for operation of stores. + References No definition available. + Details
Name: | cube_NumberOfJointVenturesInvolvedInCompletionOfConstructionAndOpenedForOperationOfStores
Namespace Prefix: | cube_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of real estate investment property construction costs capitalized. + References No definition available. + Details
Name: | cube_RealEstateInvestmentPropertyConstructionCostsCapitalized
Namespace Prefix: | cube_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RealEstatePropertiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481203/810-10-50-5A + Details
Name: | us-gaap_VariableInterestEntityOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | cube_ScheduleOfRealEstateInvestmentPropertyAxis=cube_StoreFacilityLocatedInPortChesterNewYorkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | cube_ScheduleOfRealEstateInvestmentPropertyAxis=cube_StoreFacilityLocatedInAstoriaNewYorkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | cube_ScheduleOfRealEstateInvestmentPropertyAxis=cube_StoreFacilityLocatedInClarkNewJerseyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | cube_ScheduleOfRealEstateInvestmentPropertyAxis=cube_SelfStorageFacilitiesInNewYorkAndNewJerseyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |